Auto-heal is not necessarily a problem in itself, it was great for a game like Portal. Will Deus Ex 3 be a puzzle game?

Damn I frustrated with all this dumbing down to make sure the last idiot can finish the game! Could game developers stop thinking about morons when they design their game?

Now you'll be able to kick through walls with your POWER LEGS.

portal had no autoheal. you just either finished a puzzle or not and avoided a deathtrap/fall or not. I never had a situation where I would "regain" health or get the impression that I got damaged, on the contrary you either survived or died instantly, which looked far more realistic.

IIRC, JC and Paul were cloned from Simons with the nanotech being present in their systems from "birth." Simons had the nanotech infused as an adult, so it affected his outward appearance more.

All the conspirators had to do was wait. Ma and Pa Denton -- two such potential candidates -- fell in love (perhaps even with some help from the conspirators!) and produced young Paul under the watchful, albeit covert eye of Majestic 12 operatives who played the parts of friends, family doctors, neighbors, school teachers and so on...

[...]

Meanwhile, Paul started to grow up, blissfully unaware of the experiments being carried out in his name...

Paul's mother, who was unable to have any more children but wanted another, was approached by Majestic 12 operatives posing as fertility experts. She was told that she would be paid handsomely in exchange for participating in experimental surgery that would allow her to become pregnant. For Mrs. Denton, who'd been poor all her life, this was a dream come true -- she could have another child AND have enough money to raise her family in comfort. The "fertility experts" assured her that the surgery was minor and the risk was minimal.

She and her husband agreed to the experiment, unaware that their lives had been closely monitored by the cabal for many years. Although Paul's mother believed that the surgery would let her become pregnant again, in reality the Majestic 12 operatives implanted her with a cloned embryo of Paul.

Nine months later, J.C. Denton was born. Paul and J.C. were raised as brothers, under the careful and clandestine scrutiny of Majestic 12.
[...]

And as for the "too sleek" and "too clean" arguments. As has been pointed out elsewhere, DX1 takes place after a second Civil War in the States, and with the world in the grip of an engineered plague. It would make sense for the mechanical augs to take a function-before-form design approach when they're being developed for almost immediate frontline use by soldiers and law enforcement. Same for the overall world aesthetic: world hasn't gone to shit yet, so things can be neat and clean, and there's even time for Ren-punk clothing styles. World goes to shit -> clothing and technology becomes more utilitarian in design -> everything else turns grimy and shit.